Texas Instruments LP3995 Handleiding

Bekijk gratis de handleiding van Texas Instruments LP3995 (26 pagina’s), behorend tot de categorie Niet gecategoriseerd. Deze gids werd als nuttig beoordeeld door 2 mensen en kreeg gemiddeld 4.1 sterren uit 6 reviews. Heb je een vraag over Texas Instruments LP3995 of wil je andere gebruikers van dit product iets vragen? Stel een vraag

OUT

IN

EN

6

2

3

4

BYPASS

1

10 nF

1 µF

1 µF

Input

Enable

GND

LP3995

Load

C

IN

C

BP

C

OUT

(C3)

(A1)

(B2)

(A3)

(C1)

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

LP3995

SNVS179F–FEBRUARY2003–REVISEDSEPTEMBER2015

LP3995Micropower150-mACMOSVoltageRegulatorWithActiveShutdown

1Features3Description

TheLP3995linearregulatorisdesignedtomeetthe

1

•InputRange:2.5Vto6V

requirementsofportablebattery-powered

•AccurateOutputVoltage:±75mV/2%

applications,providinganaccurateoutputvoltage

•TypicalDropoutwith150mALoad:60mV

withlownoiseandlowquiescentcurrent.Ideally

suitedforpoweringRFandanalogdevices,this

•VirtuallyZeroQuiescentCurrentWhenDisabled

devicecanalsobeusedtomeetmoregeneralcircuit

•LowOutputVoltageNoise

needsinwhichafastturnoffisessential.

•StableWitha1-µFOutputCapacitor

Forbattery-poweredapplicationsthelowdropoutand

•OutputCurrent:150mA

lowgroundcurrentprovidedbythedeviceallowsthe

•FastTurnon:30µs(Typical)

lifetimeofthebatterytobemaximized.The

Enable(/Disable)controlfunctionallowsthesystemto

•FastTurnoff:175µs(Typical)

furtherextendthebatterylifetimebyreducingthe

•StableWithCeramicCapacitor

powerconsumptiontovirtuallyzero.Thisfunction

•LogicControlledEnable

alsoincorporatesanactivedischargecircuitonthe

•FastTurnon

outputforfasterdeviceshutdown.Wherethefast

turnoffisnotrequiredtheLP3999linearregulatoris

•ActiveDisableforFastTurnoff

recommended.TheLP3995alsofeaturesinternal

•Thermal-OverloadandShort-CircuitProtection

protectionagainstshort-circuitcurrentsand

•−40to+125°CJunctionTemperatureRangefor

overtemperatureconditions.

Operation

TheLP3995isdesignedtobestablewithsmall1-µF

ceramiccapacitors.ThesmalloutlineoftheLP3995

2Applications

DSBGApackagewiththerequiredceramiccapacitors

canrealizeasystemapplicationwithinminimalboard

•GSMPortablePhones

area.Performanceisspecifiedfora−40°Cto+125°C

•CDMACellularHandsets

temperaturerange.

•WidebandCDMACellularHandsets

TheLP3995isavailableinfixedoutputvoltagesfrom

•BluetoothDevices

1.5Vto3.3V,inDSBGAorWSONpackages.For

•PortableInformationAppliances

otherpackageoptionsoroutput-voltageoptions,

contactyourlocalTIsalesoffice.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE

DSBGA(5)1.502mm×1.045mm(MAX)

LP3995

WSON(6)3.29mm×2.92mm(NOM)

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

TypicalApplicationCircuit

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties